System-board switches
The following illustration shows the location and description of the switches.
Important
- If there is a clear protective sticker on the switch blocks, you must remove and discard it to access the switches.
- Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
Figure 1. Location of the switches, jumpers, and buttons on the system board
![Location of the switches, jumpers, and buttons on the system board](sd530_028-450.png)
![Location of the switches, jumpers, and buttons on the system board](sd530_028-450.png)
The following table describes the jumpers on the system board.
Switch block | Switch | Switch name | Usage description | |
---|---|---|---|---|
Open | Close | |||
S18 | 2 | XClarity Controller boot backup | Normal (default) | The compute node will boot by using a backup of the XClarity Controller firmware. |
3 | XClarity Controller force update | Normal (default) | Enables XClarity Controller force update | |
4 | TPM physical presence | Normal (default) | Indicates a physical presence to the system TPM | |
S19 | 1 | System UEFI backup | Normal (default) | Enables system BIOS backup |
2 | Password override jumper | Normal (default) | Overrides the power-on password | |
3 | CMOS clear jumper | Normal (default) | Clears the real-time clock (RTC) registry |
Important
- Before you change any switch settings or move any jumpers, turn off the solution; then, disconnect all power cords and external cables. Review the information in Safety Information page, Installation Guidelines, Handling static-sensitive devices, and Power off the compute node.
- Any system-board switch or jumper block that is not shown in the illustrations in this document are reserved.
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